This is Ganoderma curtisii. You can see the dark laccate lines directly above the pores. These occur in other Ganoderma as well, but are useful in this case for distinguishing between G.curtisii and G.ravenelii.

Check out my observation, 213456. It shows the first sample of G.ravenelii I have been sent, notice the lack of those bands, it also has longer spores with a finer echinulation than G.curtisii.

Excellent, this is why i aimed to be active on this site. I have been collecting these for years but I feel there is still a lot of ambiguity around exactly what G. Curtisii is and basically the majority of Ganoderma varieties for that matter. So i really applaud people like you making headway.

Please let me know if any additional pictures are needed. This was found at a different location than my pictures last week. In late summer / fall i seem to be a magnet for these guys (or maybe vica-versa).